This graph shows results produced through testing done by The Solar Light Company, the premier light testing lab in the U.S.  It clearly demonstrates that through the entire UV spectrum, UV light transmits best using the Superior Cuvette.  If one seeks quality and consistency, there is really no other choice.  

While others tout great results, we actually produce great results.  And we are the only Cuvette which has actually been tested by a qualified third party lab.